Alert archive / Illinois / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 10, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Mar 28, 1997, 5:35 PM CST for DeWitt County, Illinois. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Mar 28, 1997, 5:35 PM CST (23:35 UTC)
- Expired
- Mar 28, 1997, 6:15 PM CST
- In force
- 40 min
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
County DeWitt County, IL
The radar
The Lincoln radar (KILX), 37 km from the middle of the area, began a volume at 23:36 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 11.6 hours before the alert went out and 26 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 127 J/kg
- Mixed-layer CIN
- -142 J/kg
- Mixed-layer LCL
- 815 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 207 m²/s²
- 0-3 km storm-relative helicity
- 211 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
343
WUUS1 KSPI 282359 RRA
SVRSPI
ILC039-290015-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...RETRANSMISSION
NATIONAL WEATHER SERVICE LINCOLN IL
535 PM CST FRI MAR 28 1997
* SEVERE THUNDERSTORM WARNING FOR
DEWITT COUNTY -- CENTRAL ILLINOIS
* UNTIL 615 PM CST
* SOME LOCATIONS IN THE PATH OF THIS STORM:
LANE
DE WITT
FARMER CITY
* AT 535 PM CST LINCOLN DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM 12 MILES NORTH OF DECATUR...MOVING NORTHEAST AT 40
MPH.
TAKE SHELTER IN A SUBSTANTIAL BUILDING. STAY AWAY FROM WINDOWS AND
STAY OFF TELEPHONES. REMEMBER...SEVERE THUNDERSTORMS MAY PRODUCE
TORNADOES AT ANY TIME.
GEELHARTWhat forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Lincoln, IL wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 28, 1:58 PM CST, 3 hours 37 minutes earlier.
Area forecast discussion, Mar 28, 1:58 PM CST, 3 hours 37 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LINCOLN IL 200 PM CST FRI MAR 28 1997 MDLS IN GOOD AGREEMENT W/ SYS ROTATING INTO IL TON. BEST DYNAMICS AS WELL AS MOIST CONVRG...UP LVL DVRG WL BE OVR SRN IL TO INCLUDE PORTIONS OF SE AND EC IL THIS EVE AND TON. STORMS HAVE ALREADY DVLPD S AND SW OF STL ALONG SFC THERMAL RDG AND NOW OF 55 DWPTS ENDING AT STL. RWS AND TSTMS WL DVLP THIS AFTN AND CONT THIS EVE. NRN CNTIES COULD STILL SEE SOME THUNDER PUT JUST THIS EVE...ENDING EARLY. FRNT SHOULD PUSH THROUGH PIA BY 00Z AND SPI BY 01Z...LIMITING THE DURATION OF CONVECTION. SOME -RA IS PSBL BEHIND FRNT BUT IT TOO WONT LAST LONG. MOIST WL STICK AROUND BEHIND FRNT W/ SOME CAA. SKIES SHOULD BRK OUT TOM AND BRNG SEASONABLE CONDS FOR THE BEGINNING OF THE HOLIDAY WEEK. MDLS SIM W/ TEMPS TON AND TOM...NO REASON TO DIFFER. PIA 42/5 6(EARLY)0 SPI 43/5 7(EARLY)0 DEC 42/5 80 CMI 44/5 +0 LWV 46/5 +0 AUTEN
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 2:54 PM CST | Severe Thunderstorm Warning | ILX | Menard | 36 min |
| Mar 28, 3:18 PM CST | Severe Thunderstorm Warning | ILX | Logan, Sangamon | 57 min |
| Mar 28, 3:54 PM CST | Severe Thunderstorm Warning | ILX | Christian | 36 min |
| Mar 28, 4:00 PM CST | Severe Thunderstorm Warning | ILX | McLean | 60 min |
| Mar 28, 4:06 PM CST | Severe Thunderstorm Warning | ILX | Macon | 54 min |
| Mar 28, 4:27 PM CST | Severe Thunderstorm Warning | ILX | DeWitt | 48 min |
| Mar 28, 4:37 PM CST | Severe Thunderstorm Warning | ILX | Effingham | 53 min |
| Mar 28, 4:49 PM CST | Severe Thunderstorm Warning | ILX | Champaign, Piatt | 56 min |
| Mar 28, 5:00 PM CST | Severe Thunderstorm Warning | ILX | Shelby | 30 min |
| Mar 28, 5:12 PM CST | Tornado Warning | ILX | Coles, Cumberland | 33 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1997Every severe thunderstorm warning in 1997
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.